公开(公告)号：US4984526A

公开(公告)日：1991-01-15

申请号：US356574

申请日：1989-05-23

Applicant: Hiroshi Ide ,  Kikuo Aida ,  Shingo Iwae

Inventor： Hiroshi Ide ,  Kikuo Aida ,  Shingo Iwae

IPC: D05B65/06 ,  D05B1/20 ,  D05B61/00 ,  D05B73/12

CPC classification number: D05B61/00 ,  D05B1/20 ,  D05B73/12

Abstract: A thread chain guiding device provides a needle-thread-guide plate which extends underneath a throat plate by energizing a solenoid as needed. Thus, the needle-thread-guide plate pushes the needle threads twined around a lower looper outwardly away such that the thread chain is prevented from hanging on an inner chain-off finger when it is rotated counter clockwise. The needle-thread-guide plate is retracted during a normal stitching process by de-energizing the solenoid.

Abstract translation: 线链引导装置提供了一种通过根据需要激励螺线管而在喉板下延伸的针导向板。 因此，针线引导板将围绕下弯针的线螺纹向外推开，使得当逆时针方向旋转时，防止线链挂在内侧的脱链手指上。 在正常缝合过程中，针螺纹引导板通过使螺线管断电而缩回。

公开(公告)号：US4594958A

公开(公告)日：1986-06-17

申请号：US696729

申请日：1985-01-31

Applicant: Hiroshi Ide

Inventor： Hiroshi Ide

IPC: D05B27/04 ,  D05B29/02

CPC classification number: D05B27/04

Abstract: A presser foot lift device for an upper feed sewing machine is so arranged that an upper feed tooth is initially lifted and then lifted along with a presser foot only after the lower surface of the upper feed tooth is at a position above the upper surface of the presser foot. This two-step lifting motion is made feasible by the combined operation of an elongated slot formed in a manually rotated actuating arm and a pin formed on an actuator pivotally mounted in coaxial fashion on a supporting shaft of the actuating arm and so adapted as to be introduced into the elongated slot.

Abstract translation: 用于上饲料缝纫机的压脚提升装置被布置成使得上进料齿最初被抬起，然后仅在上进料齿的下表面位于上进料缝的上表面上方的位置之前与压脚一起提升 压脚。 通过在手动旋转的致动臂中形成的细长槽和形成在致动臂的支撑轴上以同轴方式可枢转地安装的致动器上的销的组合操作，这种两步提升运动变得可行，并且适于 引入细长的槽。

公开(公告)号：US08351311B2

公开(公告)日：2013-01-08

申请号：US13094569

申请日：2011-04-26

Applicant: Toshiya Matsuda ,  Hiroshi Ide

Inventor： Toshiya Matsuda ,  Hiroshi Ide

IPC: G11B7/00

CPC classification number: G11B7/0943 ,  G11B7/0053 ,  G11B7/0903 ,  G11B7/0906 ,  G11B20/10009 ,  G11B20/18 ,  G11B2007/0006 ,  G11B2020/1239 ,  G11B2220/2541

Abstract: The present invention achieves higher precision and lower power consumption by reducing semiconductor chip occupation area. A semiconductor integrated circuit which can be mounted on an optical disk device has: a wobble signal generating circuit capable of receiving first, second, third, and fourth light reception output signals A, B, C, and D of a light receiving element in an optical pickup and detecting a wobble in a recordable disk; a differential phase detection signal (DPD) generating circuit for tracking an unrecordable disk; and two A/D converters and an arithmetic circuit. The first, second, third, and fourth light reception output signals are selectively supplied to the two A/D converters, the arithmetic circuit in a first operation mode generates a first addition output signal of A and C and a second addition output signal of B and D, the DPD generating circuit generates a digital phase comparison signal, the arithmetic circuit in a second operation mode generates a third addition output signal of A and D and a fourth addition output signal of B and C, and the wobble signal generating circuit generates a digital wobble signal.

Abstract translation: 本发明通过减少半导体芯片的占用面积来实现更高的精度和更低的功耗。 可以安装在光盘装置上的半导体集成电路具有：摆动信号发生电路，其能够接收光接收元件的第一，第二，第三和第四光接收输出信号A，B，C和D 光拾取器和检测可记录盘中的摆动; 用于跟踪不可记录盘的差分相位检测信号（DPD）产生电路; 和两个A / D转换器和一个运算电路。 第一，第二，第三和第四光接收输出信号被选择性地提供给两个A / D转换器，运算电路在第一操作模式中产生A和C的第一相加输出信号和B的第二相加输出信号 和D，DPD发生电路产生数字相位比较信号，第二运行模式中的运算电路产生A和D的第三相加输出信号和B和C的第四加法输出信号，并且摆动信号产生电路产生 数字摆频信号。

公开(公告)号：US20110020669A1

公开(公告)日：2011-01-27

申请号：US12840374

申请日：2010-07-21

Applicant: Junichi SAYAMA ,  Hiroaki Nemoto ,  Hiroshi Ide ,  Hiroyasu Kataoka ,  Nobuyukl Takahashi ,  Takehito Shimatsu ,  Osamu Kitakami ,  Satoshi Okamoto ,  Hajime Aoi

Inventor： Junichi SAYAMA ,  Hiroaki Nemoto ,  Hiroshi Ide ,  Hiroyasu Kataoka ,  Nobuyukl Takahashi ,  Takehito Shimatsu ,  Osamu Kitakami ,  Satoshi Okamoto ,  Hajime Aoi

IPC: G11B5/706 ,  G11B5/62 ,  G11B5/73

CPC classification number: G11B5/656 ,  G11B5/65 ,  G11B5/7315 ,  G11B5/7325

Abstract: A magnetic recording medium having excellent stability of recorded magnetic signals and capable of recording magnetic signals by a thermally assisted magnetic recording system in which a magnetic recording layer of the magnetic recording medium contains ferromagnetic crystal grains of a Co—Ni—Pt alloy with a Pt content of 44 at % or more and 55 at % or less and with an atom content ratio: Ni/(Co+Ni) of 0.64 or more and 0.8 or less. The magnetic recording medium has extremely excellent stability of recorded magnetic signals since the Co—Ni—Pt alloy constituting the magnetic recording layer has an extremely high anisotropy field at a normal temperature. Further, the magnetic recording medium can perform signal recording based on the thermally assisted magnetic recording system since the Co—Ni—Pt alloy constituting the magnetic recording layer has a Curie point within an appropriate temperature range.

Abstract translation: 一种磁记录介质，其具有良好的记录磁信号的稳定性并且能够通过热辅助磁记录系统记录磁信号，其中磁记录介质的磁记录层包含Co-Ni-Pt合金的铁磁晶粒与Pt 含量为44原子％以上且55原子％以下，原子含量比：Ni /（Co + Ni）为0.64以上且0.8以下。 由于构成磁记录层的Co-Ni-Pt合金在常温下具有极高的各向异性场，所以磁记录介质具有非常优异的记录磁信号的稳定性。 此外，由于构成磁记录层的Co-Ni-Pt合金在适当的温度范围内具有居里点，所以磁记录介质可以基于热辅助磁记录系统执行信号记录。

公开(公告)号：US07136340B2

公开(公告)日：2006-11-14

申请号：US10720179

申请日：2003-11-25

Applicant: Hiroshi Ide ,  Satoshi Fujita

Inventor： Hiroshi Ide ,  Satoshi Fujita

IPC: G11B7/00

CPC classification number: H03H11/1217 ,  G11B20/10009 ,  G11B20/10046

Abstract: A disk type record playback device having a wobble signal extracting bandpass filter for controlling a filter's center frequency according to a frequency follow-up control loop including a dummy filter identical in configuration to a filter to be controlled, and a phase comparator is capable of controlling the center frequency of the bandpass filter with satisfactory accuracy. A frequency variable lowpass filter is provided in a preceding stage of the phase comparator constituting a frequency follow-up circuit and supplies a signal obtained by eliminating harmonic components from a frequency follow-up clock signal to the phase comparator. A cutoff frequency of the lowpass filter is changed in cooperation with a center frequency of the bandpass filter, based on a signal outputted from the frequency follow-up control loop.

Abstract translation: 一种具有摆动信号提取带通滤波器的盘式记录重放装置，用于根据包括与待控制的滤波器相同的配置的伪滤波器的频率跟随控制环来控制滤波器的中心频率，并且相位比较器能够控制 带通滤波器的中心频率具有令人满意的精度。 在构成频率跟随电路的相位比较器的前级中提供频率可变低通滤波器，并将通过从频率跟随时钟信号中消除谐波分量而获得的信号提供给相位比较器。 基于从频率跟随控制回路输出的信号，低通滤波器的截止频率与带通滤波器的中心频率协调地改变。

公开(公告)号：US20060187578A1

公开(公告)日：2006-08-24

申请号：US11404780

申请日：2006-04-17

Applicant: Takehiko Hamaguchi ,  Atsushi Nakamura ,  Yasutaka Nishida ,  Hisashi Takano ,  Yohji Maruyama ,  Hiroshi Ide ,  Hideki Sawaguchi ,  Futoshi Tomiyama

Inventor： Takehiko Hamaguchi ,  Atsushi Nakamura ,  Yasutaka Nishida ,  Hisashi Takano ,  Yohji Maruyama ,  Hiroshi Ide ,  Hideki Sawaguchi ,  Futoshi Tomiyama

IPC: G11B17/00

CPC classification number: G11B5/012 ,  G11B5/4886 ,  G11B27/02

Abstract: For the purpose of letting through a magnetic flux which reverses the magnetization of the magnetic layer of the magnetic disk, a write element requires a predetermined sectional area. However, if a cross section of a magnetic pole is structured as the one having a large aspect ratio, the pole becomes less capable of letting the magnetic flux through effectively. This phenomenon brings about a lower limit on the track width of the magnetic poles and the track density cannot be raised. In the present invention, by making the width of the write element larger than the track pitch and securing a write magnetic field strong enough to reverse the magnetization of the magnetic layer, and further by writing while shifting a write head comprising the write element, a magnetic disk drive, of which the track width is narrower than the write element width, and the storage capacity is large, is realized.

公开(公告)号：US20050046985A1

公开(公告)日：2005-03-03

申请号：US10890073

申请日：2004-07-12

Applicant: Akira Morinaga ,  Yoji Maruyama ,  Hiroshi Ide ,  Norifumi Miyamoto

Inventor： Akira Morinaga ,  Yoji Maruyama ,  Hiroshi Ide ,  Norifumi Miyamoto

IPC: G11B5/455 ,  G11B5/00 ,  G11B5/012 ,  G11B5/60 ,  G11B21/21 ,  G11B27/36 ,  G11B21/02

CPC classification number: G11B5/6005 ,  G11B5/3136 ,  G11B5/607

Abstract: A write head's material having a great thermal expansion coefficient expands due to Joule heat resulting from a write current and a temperature rise dependent on high-frequency core loss, thereby causing the head's flying surface to protrude toward a magnetic disk. This phenomenon is called TPR (thermal protrusion). It is essential that the flying height be accurately determined and managed in consideration of TPR. A magnetic disk drive for actual use or a magnetic disk drive that is in a testing process but similar to the one for actual use is used to measure TPR amount changes resulting from a write operation, store the resulting measured data in a memory or on the magnetic disk, and perform flying height management with the stored measured data. Further, flying height management is performed as needed in conjunction with a SMART function. The present invention makes it possible to perform high-reliability flying height management.

Abstract translation: 具有大的热膨胀系数的写头材料由于写入电流引起的焦耳热和依赖于高频磁芯损耗的温度升高而扩大，从而使磁头的飞行表面朝向磁盘突出。 这种现象称为TPR（热突起）。 考虑到TPR，飞行高度必须准确确定和管​​理至关重要。 用于实际使用的磁盘驱动器或处于测试过程中但类似于实际使用的磁盘驱动器用于测量由写入操作导致的TPR量变化，将得到的测量数据存储在存储器中或在 磁盘，并使用存储的测量数据执行飞行高度管理。 此外，根据需要结合SMART功能执行飞行高度管理。 本发明能够进行高可靠性的飞行高度管理。

公开(公告)号：US06795277B2

公开(公告)日：2004-09-21

申请号：US10067859

申请日：2002-02-08

Applicant: Yuko Tsuchiya ,  Hiroyuki Hoshiya ,  Yoshiaki Kawato ,  Katsuro Watanabe ,  Hiroshi Ide

Inventor： Yuko Tsuchiya ,  Hiroyuki Hoshiya ,  Yoshiaki Kawato ,  Katsuro Watanabe ,  Hiroshi Ide

IPC: G11B5265

CPC classification number: G11B5/3116 ,  G11B5/1278 ,  G11B5/2652 ,  G11B5/3146 ,  G11B5/315

Abstract: Provided is a thin film single pole head for perpendicular magnetic recording, which has a structure offering a high formatted volume, easy servo, difficulty of influencing a recording pattern on a medium, and capability of shortening processing time. This thin film single pole head for perpendicular magnetic recording is formed on a reproducing head composed of a pair of shield layers formed on a substrate, and a reproducing element formed therebetween. A structure is provided, where an auxiliary pole is not disposed between the reproducing element of the reproducing head and the main pole of a recording head when seen from a surface facing to recording media.

Abstract translation: 提供一种用于垂直磁记录的薄膜单极头，其具有提供高格式化体积，容易伺服，难以影响介质上的记录图案的结构以及缩短处理时间的能力的结构。 用于垂直磁记录的这种薄膜单极头形成在由形成在基板上的一对屏蔽层和由它们之间形成的再现元件构成的再现头上。 提供了一种结构，其中当从面向记录介质的表面看时，辅助极不设置在再现头的再现元件和记录头的主极之间。

公开(公告)号：US06560168B1

公开(公告)日：2003-05-06

申请号：US09719427

申请日：2000-12-12

Applicant: Hideki Saga ,  Hiroaki Nemoto ,  Hirofumi Sukeda ,  Masahiko Takahashi ,  Kimio Nakamura ,  Yohji Maruyama ,  Hiroshi Ide ,  Takehiko Hamaguchi

Inventor： Hideki Saga ,  Hiroaki Nemoto ,  Hirofumi Sukeda ,  Masahiko Takahashi ,  Kimio Nakamura ,  Yohji Maruyama ,  Hiroshi Ide ,  Takehiko Hamaguchi

IPC: G11B1100

CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/00 ,  G11B5/398 ,  G11B5/5552 ,  G11B5/59683 ,  G11B5/74 ,  G11B5/82 ,  G11B11/1053 ,  G11B11/10532 ,  G11B11/10541 ,  G11B11/10554 ,  G11B11/10576 ,  G11B11/1058 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0016 ,  G11B2005/0021 ,  G11B2005/3996

Abstract: An information recording apparatus using a recording medium which holds information by reversed magnetic domains on a perpendicular magnetic recording film includes an irradiation unit for applying electromagnetic energy or light onto the recording medium, and a magnetic flux detection unit for detecting magnetic leakage flux emerging from the recording medium, the magnetic flux detection unit being disposed on the same side as the irradiation unit with respect to the recording medium. As a result, both side recording of the recording medium can be conducted.

Abstract translation: 使用记录介质的信息记录装置，其用垂直磁记录膜上的反向磁畴保持信息，包括用于向记录介质施加电磁能或光的照射单元，以及磁通检测单元，用于检测从 记录介质，磁通检测单元相对于记录介质设置在与照射单元相同的一侧。 结果，可以进行记录介质的双面记录。

公开(公告)号：US06310741B1

公开(公告)日：2001-10-30

申请号：US09225972

申请日：1999-01-05

Applicant: Yasutaka Nishida ,  Takehiko Hamaguchi ,  Hisashi Takano ,  Hiroshi Ide ,  Hideki Sawaguchi ,  Futoshi Tomiyama

Inventor： Yasutaka Nishida ,  Takehiko Hamaguchi ,  Hisashi Takano ,  Hiroshi Ide ,  Hideki Sawaguchi ,  Futoshi Tomiyama

IPC: G11B509

CPC classification number: G11B19/04 ,  G11B5/596

Abstract: When the amount of position error PE of a magnetic head meets the condition of Ewf>PE>=Eww for two threshold values Ewf and Eww meeting Ewf>Eww, the track is registered in the track information table as a track requiring rewrite and the tracks on both sides neighboring to the track are temporarily write-inhibited. The data of the track is rewritten on another track later so as to maintain the data. By doing this, the offtrack of the recording track can be made smaller without sacrifice of the access speed and the occurrence probability of write fault can be reduced. Furthermore, the reliability of a magnetic disk apparatus can be improved.

Abstract translation: 当磁头的位置误差PE的数量满足Ewf> PE> = Eww的两个阈值Ewf和Eww满足Ewf> Eww的条件时，轨道被记录在轨道信息表中作为需要重写的轨道，并且轨道 在与轨道相邻的两侧临时禁止写入。 轨道的数据稍后被重写在另一个轨道上，以便保持数据。这样做，可以使得记录轨道的远距离更小，而不牺牲访问速度，并且可以减少写入故障的发生概率。 此外，可以提高磁盘装置的可靠性。